// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2015-2020, The Linux Foundation. All rights reserved. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "wsa881x.h" #include "wsa881x-temp-sensor.h" #include "asoc/bolero-slave-internal.h" #define DRV_NAME "wsa-codec" #define WSA881X_NUM_RETRY 5 enum { G_18DB = 0, G_16P5DB, G_15DB, G_13P5DB, G_12DB, G_10P5DB, G_9DB, G_7P5DB, G_6DB, G_4P5DB, G_3DB, G_1P5DB, G_0DB, }; enum { DISABLE = 0, ENABLE, }; enum { SWR_DAC_PORT, SWR_COMP_PORT, SWR_BOOST_PORT, SWR_VISENSE_PORT, }; struct swr_port { u8 port_id; u8 ch_mask; u32 ch_rate; u8 num_ch; u8 port_type; }; enum { WSA881X_DEV_DOWN, WSA881X_DEV_UP, WSA881X_DEV_READY, }; /* * Private data Structure for wsa881x. All parameters related to * WSA881X codec needs to be defined here. */ struct wsa881x_priv { struct regmap *regmap; struct device *dev; struct swr_device *swr_slave; struct snd_soc_component *component; bool comp_enable; bool boost_enable; bool visense_enable; u8 pa_gain; struct swr_port port[WSA881X_MAX_SWR_PORTS]; int pd_gpio; struct wsa881x_tz_priv tz_pdata; int bg_cnt; int clk_cnt; int version; struct mutex bg_lock; struct mutex res_lock; struct mutex temp_lock; struct snd_info_entry *entry; struct snd_info_entry *version_entry; int state; struct delayed_work ocp_ctl_work; struct device_node *wsa_rst_np; int pa_mute; struct device_node *bolero_np; struct platform_device* bolero_dev; struct notifier_block bolero_nblock; void *handle; int (*register_notifier)(void *handle, struct notifier_block *nblock, bool enable); }; struct wsa_ctrl_platform_data { void *handle; int (*update_wsa_event)(void *handle, u16 event, u32 data); int (*register_notifier)(void *handle, struct notifier_block *nblock, bool enable); }; #define SWR_SLV_MAX_REG_ADDR 0x390 #define SWR_SLV_START_REG_ADDR 0x40 #define SWR_SLV_MAX_BUF_LEN 25 #define BYTES_PER_LINE 12 #define SWR_SLV_RD_BUF_LEN 8 #define SWR_SLV_WR_BUF_LEN 32 #define SWR_SLV_MAX_DEVICES 2 #define WSA881X_VERSION_ENTRY_SIZE 27 #define WSA881X_OCP_CTL_TIMER_SEC 2 #define WSA881X_OCP_CTL_TEMP_CELSIUS 25 #define WSA881X_OCP_CTL_POLL_TIMER_SEC 60 static int wsa881x_ocp_poll_timer_sec = WSA881X_OCP_CTL_POLL_TIMER_SEC; module_param(wsa881x_ocp_poll_timer_sec, int, 0664); MODULE_PARM_DESC(wsa881x_ocp_poll_timer_sec, "timer for ocp ctl polling"); static struct wsa881x_priv *dbgwsa881x; static struct dentry *debugfs_wsa881x_dent; static struct dentry *debugfs_peek; static struct dentry *debugfs_poke; static struct dentry *debugfs_reg_dump; static unsigned int read_data; static unsigned int devnum; static int32_t wsa881x_resource_acquire(struct snd_soc_component *component, bool enable); static const char * const wsa_pa_gain_text[] = { "G_18_DB", "G_16P5_DB", "G_15_DB", "G_13P5_DB", "G_12_DB", "G_10P5_DB", "G_9_DB", "G_7P5_DB", "G_6_DB", "G_4P5_DB", "G_3_DB", "G_1P5_DB", "G_0_DB" }; static const struct soc_enum wsa_pa_gain_enum = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(wsa_pa_gain_text), wsa_pa_gain_text); static int wsa_pa_gain_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); ucontrol->value.integer.value[0] = wsa881x->pa_gain; dev_dbg(component->dev, "%s: PA gain = 0x%x\n", __func__, wsa881x->pa_gain); return 0; } static int wsa_pa_gain_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); dev_dbg(component->dev, "%s: ucontrol->value.integer.value[0] = %ld\n", __func__, ucontrol->value.integer.value[0]); wsa881x->pa_gain = ucontrol->value.integer.value[0]; return 0; } static int wsa881x_get_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); ucontrol->value.integer.value[0] = wsa881x->pa_mute; return 0; } static int wsa881x_set_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); int value = ucontrol->value.integer.value[0]; dev_dbg(component->dev, "%s: mute current %d, new %d\n", __func__, wsa881x->pa_mute, value); if (value) snd_soc_component_update_bits(component, WSA881X_SPKR_DRV_EN, 0x80, 0x00); wsa881x->pa_mute = value; return 0; } static int wsa881x_get_t0_init(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); struct wsa881x_tz_priv *pdata = &wsa881x->tz_pdata; ucontrol->value.integer.value[0] = pdata->t0_init; dev_dbg(component->dev, "%s: t0 init %d\n", __func__, pdata->t0_init); return 0; } static int wsa881x_set_t0_init(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); struct wsa881x_tz_priv *pdata = &wsa881x->tz_pdata; pdata->t0_init = ucontrol->value.integer.value[0]; dev_dbg(component->dev, "%s: t0 init %d\n", __func__, pdata->t0_init); return 0; } static const struct snd_kcontrol_new wsa_snd_controls[] = { SOC_ENUM_EXT("WSA PA Gain", wsa_pa_gain_enum, wsa_pa_gain_get, wsa_pa_gain_put), SOC_SINGLE_EXT("WSA PA Mute", SND_SOC_NOPM, 0, 1, 0, wsa881x_get_mute, wsa881x_set_mute), SOC_SINGLE_EXT("WSA T0 Init", SND_SOC_NOPM, 0, 1, 0, wsa881x_get_t0_init, wsa881x_set_t0_init), }; static int codec_debug_open(struct inode *inode, struct file *file) { file->private_data = inode->i_private; return 0; } static int get_parameters(char *buf, u32 *param1, int num_of_par) { char *token; int base, cnt; token = strsep(&buf, " "); for (cnt = 0; cnt < num_of_par; cnt++) { if (token) { if ((token[1] == 'x') || (token[1] == 'X')) base = 16; else base = 10; if (kstrtou32(token, base, ¶m1[cnt]) != 0) return -EINVAL; token = strsep(&buf, " "); } else return -EINVAL; } return 0; } static ssize_t wsa881x_codec_version_read(struct snd_info_entry *entry, void *file_private_data, struct file *file, char __user *buf, size_t count, loff_t pos) { struct wsa881x_priv *wsa881x; char buffer[WSA881X_VERSION_ENTRY_SIZE]; int len; wsa881x = (struct wsa881x_priv *) entry->private_data; if (!wsa881x) { pr_err("%s: wsa881x priv is null\n", __func__); return -EINVAL; } len = snprintf(buffer, sizeof(buffer), "WSA881X-SOUNDWIRE_2_0\n"); return simple_read_from_buffer(buf, count, &pos, buffer, len); } static struct snd_info_entry_ops wsa881x_codec_info_ops = { .read = wsa881x_codec_version_read, }; /* * wsa881x_codec_info_create_codec_entry - creates wsa881x module * @codec_root: The parent directory * @component: Codec instance * * Creates wsa881x module and version entry under the given * parent directory. * * Return: 0 on success or negative error code on failure. */ int wsa881x_codec_info_create_codec_entry(struct snd_info_entry *codec_root, struct snd_soc_component *component) { struct snd_info_entry *version_entry; struct wsa881x_priv *wsa881x; struct snd_soc_card *card; char name[80]; if (!codec_root || !component) return -EINVAL; wsa881x = snd_soc_component_get_drvdata(component); card = component->card; snprintf(name, sizeof(name), "%s.%x", "wsa881x", (u32)wsa881x->swr_slave->addr); wsa881x->entry = snd_info_create_module_entry(codec_root->module, (const char *)name, codec_root); if (!wsa881x->entry) { dev_dbg(component->dev, "%s: failed to create wsa881x entry\n", __func__); return -ENOMEM; } wsa881x->entry->mode = S_IFDIR | 0555; if (snd_info_register(wsa881x->entry) < 0) { snd_info_free_entry(wsa881x->entry); return -ENOMEM; } version_entry = snd_info_create_card_entry(card->snd_card, "version", wsa881x->entry); if (!version_entry) { dev_dbg(component->dev, "%s: failed to create wsa881x version entry\n", __func__); snd_info_free_entry(wsa881x->entry); return -ENOMEM; } version_entry->private_data = wsa881x; version_entry->size = WSA881X_VERSION_ENTRY_SIZE; version_entry->content = SNDRV_INFO_CONTENT_DATA; version_entry->c.ops = &wsa881x_codec_info_ops; if (snd_info_register(version_entry) < 0) { snd_info_free_entry(version_entry); snd_info_free_entry(wsa881x->entry); return -ENOMEM; } wsa881x->version_entry = version_entry; return 0; } EXPORT_SYMBOL(wsa881x_codec_info_create_codec_entry); static bool is_swr_slv_reg_readable(int reg) { bool ret = true; if (((reg > 0x46) && (reg < 0x4A)) || ((reg > 0x4A) && (reg < 0x50)) || ((reg > 0x55) && (reg < 0xE0)) || ((reg > 0xE0) && (reg < 0xF0)) || ((reg > 0xF0) && (reg < 0x100)) || ((reg > 0x105) && (reg < 0x120)) || ((reg > 0x128) && (reg < 0x130)) || ((reg > 0x138) && (reg < 0x200)) || ((reg > 0x205) && (reg < 0x220)) || ((reg > 0x228) && (reg < 0x230)) || ((reg > 0x238) && (reg < 0x300)) || ((reg > 0x305) && (reg < 0x320)) || ((reg > 0x328) && (reg < 0x330)) || ((reg > 0x338) && (reg < 0x400)) || ((reg > 0x405) && (reg < 0x420))) ret = false; return ret; } static ssize_t wsa881x_swrslave_reg_show(char __user *ubuf, size_t count, loff_t *ppos) { int i, reg_val, len; ssize_t total = 0; char tmp_buf[SWR_SLV_MAX_BUF_LEN]; if (!ubuf || !ppos || (devnum == 0)) return 0; for (i = (((int) *ppos / BYTES_PER_LINE) + SWR_SLV_START_REG_ADDR); i <= SWR_SLV_MAX_REG_ADDR; i++) { if (!is_swr_slv_reg_readable(i)) continue; swr_read(dbgwsa881x->swr_slave, devnum, i, ®_val, 1); len = snprintf(tmp_buf, 25, "0x%.3x: 0x%.2x\n", i, (reg_val & 0xFF)); if (len < 0) { pr_err("%s: fail to fill the buffer\n", __func__); total = -EFAULT; goto copy_err; } if ((total + len) >= count - 1) break; if (copy_to_user((ubuf + total), tmp_buf, len)) { pr_err("%s: fail to copy reg dump\n", __func__); total = -EFAULT; goto copy_err; } *ppos += len; total += len; } copy_err: return total; } static ssize_t codec_debug_read(struct file *file, char __user *ubuf, size_t count, loff_t *ppos) { char lbuf[SWR_SLV_RD_BUF_LEN]; char *access_str; ssize_t ret_cnt; if (!count || !file || !ppos || !ubuf) return -EINVAL; access_str = file->private_data; if (*ppos < 0) return -EINVAL; if (!strcmp(access_str, "swrslave_peek")) { snprintf(lbuf, sizeof(lbuf), "0x%x\n", (read_data & 0xFF)); ret_cnt = simple_read_from_buffer(ubuf, count, ppos, lbuf, strnlen(lbuf, 7)); } else if (!strcmp(access_str, "swrslave_reg_dump")) { ret_cnt = wsa881x_swrslave_reg_show(ubuf, count, ppos); } else { pr_err("%s: %s not permitted to read\n", __func__, access_str); ret_cnt = -EPERM; } return ret_cnt; } static ssize_t codec_debug_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) { char lbuf[SWR_SLV_WR_BUF_LEN]; int rc; u32 param[5]; char *access_str; if (!filp || !ppos || !ubuf) return -EINVAL; access_str = filp->private_data; if (cnt > sizeof(lbuf) - 1) return -EINVAL; rc = copy_from_user(lbuf, ubuf, cnt); if (rc) return -EFAULT; lbuf[cnt] = '\0'; if (!strcmp(access_str, "swrslave_poke")) { /* write */ rc = get_parameters(lbuf, param, 3); if ((param[0] <= SWR_SLV_MAX_REG_ADDR) && (param[1] <= 0xFF) && (rc == 0)) swr_write(dbgwsa881x->swr_slave, param[2], param[0], ¶m[1]); else rc = -EINVAL; } else if (!strcmp(access_str, "swrslave_peek")) { /* read */ rc = get_parameters(lbuf, param, 2); if ((param[0] <= SWR_SLV_MAX_REG_ADDR) && (rc == 0)) swr_read(dbgwsa881x->swr_slave, param[1], param[0], &read_data, 1); else rc = -EINVAL; } else if (!strcmp(access_str, "swrslave_reg_dump")) { /* reg dump */ rc = get_parameters(lbuf, param, 1); if ((rc == 0) && (param[0] > 0) && (param[0] <= SWR_SLV_MAX_DEVICES)) devnum = param[0]; else rc = -EINVAL; } if (rc == 0) rc = cnt; else pr_err("%s: rc = %d\n", __func__, rc); return rc; } static const struct file_operations codec_debug_ops = { .open = codec_debug_open, .write = codec_debug_write, .read = codec_debug_read, }; static void wsa881x_regcache_sync(struct wsa881x_priv *wsa881x) { mutex_lock(&wsa881x->res_lock); if (wsa881x->state != WSA881X_DEV_READY) { regcache_mark_dirty(wsa881x->regmap); regcache_sync(wsa881x->regmap); wsa881x->state = WSA881X_DEV_READY; } mutex_unlock(&wsa881x->res_lock); } static const struct reg_sequence wsa881x_pre_pmu_pa[] = { {WSA881X_SPKR_DRV_GAIN, 0x41, 0}, {WSA881X_SPKR_MISC_CTL1, 0x01, 0}, {WSA881X_ADC_EN_DET_TEST_I, 0x01, 0}, {WSA881X_ADC_EN_MODU_V, 0x02, 0}, {WSA881X_ADC_EN_DET_TEST_V, 0x10, 0}, {WSA881X_SPKR_PWRSTG_DBG, 0xA0, 0}, }; static const struct reg_sequence wsa881x_pre_pmu_pa_2_0[] = { {WSA881X_SPKR_DRV_GAIN, 0x41, 0}, {WSA881X_SPKR_MISC_CTL1, 0x87, 0}, }; static const struct reg_sequence wsa881x_post_pmu_pa[] = { {WSA881X_SPKR_PWRSTG_DBG, 0x00, 0}, {WSA881X_ADC_EN_DET_TEST_V, 0x00, 0}, {WSA881X_ADC_EN_MODU_V, 0x00, 0}, {WSA881X_ADC_EN_DET_TEST_I, 0x00, 0}, }; static const struct reg_sequence wsa881x_vi_txfe_en[] = { {WSA881X_SPKR_PROT_FE_VSENSE_VCM, 0x85, 0}, {WSA881X_SPKR_PROT_ATEST2, 0x0A, 0}, {WSA881X_SPKR_PROT_FE_GAIN, 0xCF, 0}, }; static const struct reg_sequence wsa881x_vi_txfe_en_2_0[] = { {WSA881X_SPKR_PROT_FE_VSENSE_VCM, 0x85, 0}, {WSA881X_SPKR_PROT_ATEST2, 0x0A, 0}, {WSA881X_SPKR_PROT_FE_GAIN, 0x47, 0}, }; static int wsa881x_boost_ctrl(struct snd_soc_component *component, bool enable) { dev_dbg(component->dev, "%s: enable:%d\n", __func__, enable); if (enable) snd_soc_component_update_bits(component, WSA881X_BOOST_EN_CTL, 0x80, 0x80); else snd_soc_component_update_bits(component, WSA881X_BOOST_EN_CTL, 0x80, 0x00); /* * 1.5ms sleep is needed after boost enable/disable as per * HW requirement */ usleep_range(1500, 1510); return 0; } static int wsa881x_visense_txfe_ctrl(struct snd_soc_component *component, bool enable, u8 isense1_gain, u8 isense2_gain, u8 vsense_gain) { struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); dev_dbg(component->dev, "%s: enable:%d, isense1 gain: %d, isense2 gain: %d, vsense_gain %d\n", __func__, enable, isense1_gain, isense2_gain, vsense_gain); if (enable) { regmap_multi_reg_write(wsa881x->regmap, wsa881x_vi_txfe_en_2_0, ARRAY_SIZE(wsa881x_vi_txfe_en_2_0)); } else { snd_soc_component_update_bits(component, WSA881X_SPKR_PROT_FE_VSENSE_VCM, 0x08, 0x08); /* * 200us sleep is needed after visense txfe disable as per * HW requirement. */ usleep_range(200, 210); snd_soc_component_update_bits(component, WSA881X_SPKR_PROT_FE_GAIN, 0x01, 0x00); } return 0; } static int wsa881x_visense_adc_ctrl(struct snd_soc_component *component, bool enable) { dev_dbg(component->dev, "%s: enable:%d\n", __func__, enable); snd_soc_component_update_bits(component, WSA881X_ADC_EN_MODU_V, (0x01 << 7), (enable << 7)); snd_soc_component_update_bits(component, WSA881X_ADC_EN_MODU_I, (0x01 << 7), (enable << 7)); return 0; } static void wsa881x_bandgap_ctrl(struct snd_soc_component *component, bool enable) { struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); dev_dbg(component->dev, "%s: enable:%d, bg_count:%d\n", __func__, enable, wsa881x->bg_cnt); mutex_lock(&wsa881x->bg_lock); if (enable) { ++wsa881x->bg_cnt; if (wsa881x->bg_cnt == 1) { snd_soc_component_update_bits(component, WSA881X_TEMP_OP, 0x08, 0x08); /* 400usec sleep is needed as per HW requirement */ usleep_range(400, 410); snd_soc_component_update_bits(component, WSA881X_TEMP_OP, 0x04, 0x04); } } else { --wsa881x->bg_cnt; if (wsa881x->bg_cnt <= 0) { WARN_ON(wsa881x->bg_cnt < 0); wsa881x->bg_cnt = 0; snd_soc_component_update_bits(component, WSA881X_TEMP_OP, 0x04, 0x00); snd_soc_component_update_bits(component, WSA881X_TEMP_OP, 0x08, 0x00); } } mutex_unlock(&wsa881x->bg_lock); } static void wsa881x_clk_ctrl(struct snd_soc_component *component, bool enable) { struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); dev_dbg(component->dev, "%s: enable:%d, clk_count:%d\n", __func__, enable, wsa881x->clk_cnt); mutex_lock(&wsa881x->res_lock); if (enable) { ++wsa881x->clk_cnt; if (wsa881x->clk_cnt == 1) { snd_soc_component_write(component, WSA881X_CDC_DIG_CLK_CTL, 0x01); snd_soc_component_write(component, WSA881X_CDC_ANA_CLK_CTL, 0x01); } } else { --wsa881x->clk_cnt; if (wsa881x->clk_cnt <= 0) { WARN_ON(wsa881x->clk_cnt < 0); wsa881x->clk_cnt = 0; snd_soc_component_write(component, WSA881X_CDC_DIG_CLK_CTL, 0x00); snd_soc_component_write(component, WSA881X_CDC_ANA_CLK_CTL, 0x00); } } mutex_unlock(&wsa881x->res_lock); } static int wsa881x_get_compander(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); ucontrol->value.integer.value[0] = wsa881x->comp_enable; return 0; } static int wsa881x_set_compander(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); int value = ucontrol->value.integer.value[0]; dev_dbg(component->dev, "%s: Compander enable current %d, new %d\n", __func__, wsa881x->comp_enable, value); wsa881x->comp_enable = value; return 0; } static int wsa881x_get_boost(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); ucontrol->value.integer.value[0] = wsa881x->boost_enable; return 0; } static int wsa881x_set_boost(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); int value = ucontrol->value.integer.value[0]; dev_dbg(component->dev, "%s: Boost enable current %d, new %d\n", __func__, wsa881x->boost_enable, value); wsa881x->boost_enable = value; return 0; } static int wsa881x_get_visense(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); ucontrol->value.integer.value[0] = wsa881x->visense_enable; return 0; } static int wsa881x_set_visense(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); int value = ucontrol->value.integer.value[0]; dev_dbg(component->dev, "%s: VIsense enable current %d, new %d\n", __func__, wsa881x->visense_enable, value); wsa881x->visense_enable = value; return 0; } static int wsa881x_set_boost_level(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); u8 wsa_boost_level = 0; dev_dbg(component->dev, "%s: ucontrol->value.integer.value[0] = %ld\n", __func__, ucontrol->value.integer.value[0]); wsa_boost_level = ucontrol->value.integer.value[0]; snd_soc_component_update_bits(component, WSA881X_BOOST_PRESET_OUT1, 0xff, wsa_boost_level); return 0; } static int wsa881x_get_boost_level(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); u8 wsa_boost_level = 0; wsa_boost_level = snd_soc_component_read32(component, WSA881X_BOOST_PRESET_OUT1); ucontrol->value.integer.value[0] = wsa_boost_level; dev_dbg(component->dev, "%s: boost level = 0x%x\n", __func__, wsa_boost_level); return 0; } static const struct snd_kcontrol_new wsa881x_snd_controls[] = { SOC_SINGLE_EXT("COMP Switch", SND_SOC_NOPM, 0, 1, 0, wsa881x_get_compander, wsa881x_set_compander), SOC_SINGLE_EXT("BOOST Switch", SND_SOC_NOPM, 0, 1, 0, wsa881x_get_boost, wsa881x_set_boost), SOC_SINGLE_EXT("VISENSE Switch", SND_SOC_NOPM, 0, 1, 0, wsa881x_get_visense, wsa881x_set_visense), SOC_SINGLE_EXT("Boost Level", SND_SOC_NOPM, 0, 0xff, 0, wsa881x_get_boost_level, wsa881x_set_boost_level), }; static const struct snd_kcontrol_new swr_dac_port[] = { SOC_DAPM_SINGLE("Switch", SND_SOC_NOPM, 0, 1, 0) }; static int wsa881x_set_port(struct snd_soc_component *component, int port_idx, u8 *port_id, u8 *num_ch, u8 *ch_mask, u32 *ch_rate, u8 *port_type) { struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); *port_id = wsa881x->port[port_idx].port_id; *num_ch = wsa881x->port[port_idx].num_ch; *ch_mask = wsa881x->port[port_idx].ch_mask; *ch_rate = wsa881x->port[port_idx].ch_rate; *port_type = wsa881x->port[port_idx].port_type; return 0; } static int wsa881x_enable_swr_dac_port(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); u8 port_id[WSA881X_MAX_SWR_PORTS]; u8 num_ch[WSA881X_MAX_SWR_PORTS]; u8 ch_mask[WSA881X_MAX_SWR_PORTS]; u32 ch_rate[WSA881X_MAX_SWR_PORTS]; u8 port_type[WSA881X_MAX_SWR_PORTS]; u8 num_port = 0; dev_dbg(component->dev, "%s: event %d name %s\n", __func__, event, w->name); if (wsa881x == NULL) return -EINVAL; switch (event) { case SND_SOC_DAPM_PRE_PMU: wsa881x_set_port(component, SWR_DAC_PORT, &port_id[num_port], &num_ch[num_port], &ch_mask[num_port], &ch_rate[num_port], &port_type[num_port]); ++num_port; if (wsa881x->comp_enable) { wsa881x_set_port(component, SWR_COMP_PORT, &port_id[num_port], &num_ch[num_port], &ch_mask[num_port], &ch_rate[num_port], &port_type[num_port]); ++num_port; } if (wsa881x->boost_enable) { wsa881x_set_port(component, SWR_BOOST_PORT, &port_id[num_port], &num_ch[num_port], &ch_mask[num_port], &ch_rate[num_port], &port_type[num_port]); ++num_port; } if (wsa881x->visense_enable) { wsa881x_set_port(component, SWR_VISENSE_PORT, &port_id[num_port], &num_ch[num_port], &ch_mask[num_port], &ch_rate[num_port], &port_type[num_port]); ++num_port; } swr_connect_port(wsa881x->swr_slave, &port_id[0], num_port, &ch_mask[0], &ch_rate[0], &num_ch[0], &port_type[0]); break; case SND_SOC_DAPM_POST_PMU: break; case SND_SOC_DAPM_PRE_PMD: break; case SND_SOC_DAPM_POST_PMD: wsa881x_set_port(component, SWR_DAC_PORT, &port_id[num_port], &num_ch[num_port], &ch_mask[num_port], &ch_rate[num_port], &port_type[num_port]); ++num_port; if (wsa881x->comp_enable) { wsa881x_set_port(component, SWR_COMP_PORT, &port_id[num_port], &num_ch[num_port], &ch_mask[num_port], &ch_rate[num_port], &port_type[num_port]); ++num_port; } if (wsa881x->boost_enable) { wsa881x_set_port(component, SWR_BOOST_PORT, &port_id[num_port], &num_ch[num_port], &ch_mask[num_port], &ch_rate[num_port], &port_type[num_port]); ++num_port; } if (wsa881x->visense_enable) { wsa881x_set_port(component, SWR_VISENSE_PORT, &port_id[num_port], &num_ch[num_port], &ch_mask[num_port], &ch_rate[num_port], &port_type[num_port]); ++num_port; } swr_disconnect_port(wsa881x->swr_slave, &port_id[0], num_port, &ch_mask[0], &port_type[0]); break; default: break; } return 0; } static int wsa881x_rdac_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); dev_dbg(component->dev, "%s: %s %d boost %d visense %d\n", __func__, w->name, event, wsa881x->boost_enable, wsa881x->visense_enable); switch (event) { case SND_SOC_DAPM_PRE_PMU: mutex_lock(&wsa881x->temp_lock); wsa881x_resource_acquire(component, ENABLE); mutex_unlock(&wsa881x->temp_lock); wsa881x_boost_ctrl(component, ENABLE); break; case SND_SOC_DAPM_POST_PMD: swr_slvdev_datapath_control(wsa881x->swr_slave, wsa881x->swr_slave->dev_num, false); wsa881x_boost_ctrl(component, DISABLE); mutex_lock(&wsa881x->temp_lock); wsa881x_resource_acquire(component, DISABLE); mutex_unlock(&wsa881x->temp_lock); break; } return 0; } static int wsa881x_ramp_pa_gain(struct snd_soc_component *component, int min_gain, int max_gain, int udelay) { int val; for (val = min_gain; max_gain <= val; val--) { snd_soc_component_update_bits(component, WSA881X_SPKR_DRV_GAIN, 0xF0, val << 4); /* * 1ms delay is needed for every step change in gain as per * HW requirement. */ usleep_range(udelay, udelay+10); } return 0; } static void wsa881x_ocp_ctl_work(struct work_struct *work) { struct wsa881x_priv *wsa881x; struct delayed_work *dwork; struct snd_soc_component *component; int temp_val; dwork = to_delayed_work(work); wsa881x = container_of(dwork, struct wsa881x_priv, ocp_ctl_work); if (wsa881x->state == WSA881X_DEV_DOWN) return; component = wsa881x->component; wsa881x_get_temp(wsa881x->tz_pdata.tz_dev, &temp_val); dev_dbg(component->dev, " temp = %d\n", temp_val); if (temp_val <= WSA881X_OCP_CTL_TEMP_CELSIUS) snd_soc_component_update_bits(component, WSA881X_SPKR_OCP_CTL, 0xC0, 0x00); else snd_soc_component_update_bits(component, WSA881X_SPKR_OCP_CTL, 0xC0, 0xC0); schedule_delayed_work(&wsa881x->ocp_ctl_work, msecs_to_jiffies(wsa881x_ocp_poll_timer_sec * 1000)); } static int wsa881x_spkr_pa_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); int min_gain, max_gain; dev_dbg(component->dev, "%s: %s %d\n", __func__, w->name, event); switch (event) { case SND_SOC_DAPM_PRE_PMU: snd_soc_component_update_bits(component, WSA881X_SPKR_OCP_CTL, 0xC0, 0x80); regmap_multi_reg_write(wsa881x->regmap, wsa881x_pre_pmu_pa_2_0, ARRAY_SIZE(wsa881x_pre_pmu_pa_2_0)); swr_slvdev_datapath_control(wsa881x->swr_slave, wsa881x->swr_slave->dev_num, true); /* Set register mode if compander is not enabled */ if (!wsa881x->comp_enable) snd_soc_component_update_bits(component, WSA881X_SPKR_DRV_GAIN, 0x08, 0x08); else snd_soc_component_update_bits(component, WSA881X_SPKR_DRV_GAIN, 0x08, 0x00); break; case SND_SOC_DAPM_POST_PMU: if (!wsa881x->bolero_dev) snd_soc_component_update_bits(component, WSA881X_SPKR_DRV_EN, 0x80, 0x80); if (!wsa881x->comp_enable) { max_gain = wsa881x->pa_gain; /* * Gain has to set incrementally in 4 steps * as per HW sequence */ if (max_gain > G_4P5DB) min_gain = G_0DB; else min_gain = max_gain + 3; /* * 1ms delay is needed before change in gain * as per HW requirement. */ usleep_range(1000, 1010); wsa881x_ramp_pa_gain(component, min_gain, max_gain, 1000); } if (wsa881x->visense_enable) { wsa881x_visense_txfe_ctrl(component, ENABLE, 0x00, 0x03, 0x01); snd_soc_component_update_bits(component, WSA881X_ADC_EN_SEL_IBAIS, 0x07, 0x01); wsa881x_visense_adc_ctrl(component, ENABLE); } schedule_delayed_work(&wsa881x->ocp_ctl_work, msecs_to_jiffies(WSA881X_OCP_CTL_TIMER_SEC * 1000)); /* Force remove group */ swr_remove_from_group(wsa881x->swr_slave, wsa881x->swr_slave->dev_num); break; case SND_SOC_DAPM_POST_PMD: snd_soc_component_update_bits(component, WSA881X_SPKR_DRV_EN, 0x80, 0x00); if (wsa881x->visense_enable) { wsa881x_visense_adc_ctrl(component, DISABLE); snd_soc_component_update_bits(component, WSA881X_ADC_EN_SEL_IBAIS, 0x07, 0x00); wsa881x_visense_txfe_ctrl(component, DISABLE, 0x00, 0x01, 0x01); } cancel_delayed_work_sync(&wsa881x->ocp_ctl_work); snd_soc_component_update_bits(component, WSA881X_SPKR_OCP_CTL, 0xC0, 0xC0); break; } return 0; } static const struct snd_soc_dapm_widget wsa881x_dapm_widgets[] = { SND_SOC_DAPM_INPUT("IN"), SND_SOC_DAPM_MIXER_E("SWR DAC_Port", SND_SOC_NOPM, 0, 0, swr_dac_port, ARRAY_SIZE(swr_dac_port), wsa881x_enable_swr_dac_port, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_DAC_E("RDAC", NULL, WSA881X_SPKR_DAC_CTL, 7, 0, wsa881x_rdac_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_PGA_E("SPKR PGA", SND_SOC_NOPM, 0, 0, NULL, 0, wsa881x_spkr_pa_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_OUTPUT("SPKR"), }; static const struct snd_soc_dapm_route wsa881x_audio_map[] = { {"SWR DAC_Port", "Switch", "IN"}, {"RDAC", NULL, "SWR DAC_Port"}, {"SPKR PGA", NULL, "RDAC"}, {"SPKR", NULL, "SPKR PGA"}, }; int wsa881x_set_channel_map(struct snd_soc_component *component, u8 *port, u8 num_port, unsigned int *ch_mask, unsigned int *ch_rate, u8 *port_type) { struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); int i; if (!port || !ch_mask || !ch_rate || (num_port > WSA881X_MAX_SWR_PORTS)) { dev_err(component->dev, "%s: Invalid port=%pK, ch_mask=%pK, ch_rate=%pK\n", __func__, port, ch_mask, ch_rate); return -EINVAL; } for (i = 0; i < num_port; i++) { wsa881x->port[i].port_id = port[i]; wsa881x->port[i].ch_mask = ch_mask[i]; wsa881x->port[i].ch_rate = ch_rate[i]; wsa881x->port[i].num_ch = __sw_hweight8(ch_mask[i]); if (port_type) wsa881x->port[i].port_type = port_type[i]; } return 0; } EXPORT_SYMBOL(wsa881x_set_channel_map); static void wsa881x_init(struct snd_soc_component *component) { struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); wsa881x->version = snd_soc_component_read32(component, WSA881X_CHIP_ID1); wsa881x_regmap_defaults(wsa881x->regmap, wsa881x->version); /* Enable software reset output from soundwire slave */ snd_soc_component_update_bits(component, WSA881X_SWR_RESET_EN, 0x07, 0x07); /* Bring out of analog reset */ snd_soc_component_update_bits(component, WSA881X_CDC_RST_CTL, 0x02, 0x02); /* Bring out of digital reset */ snd_soc_component_update_bits(component, WSA881X_CDC_RST_CTL, 0x01, 0x01); snd_soc_component_update_bits(component, WSA881X_CLOCK_CONFIG, 0x10, 0x10); snd_soc_component_update_bits(component, WSA881X_SPKR_OCP_CTL, 0x02, 0x02); snd_soc_component_update_bits(component, WSA881X_SPKR_MISC_CTL1, 0xC0, 0x80); snd_soc_component_update_bits(component, WSA881X_SPKR_MISC_CTL1, 0x06, 0x06); snd_soc_component_update_bits(component, WSA881X_SPKR_BIAS_INT, 0xFF, 0x00); snd_soc_component_update_bits(component, WSA881X_SPKR_PA_INT, 0xF0, 0x40); snd_soc_component_update_bits(component, WSA881X_SPKR_PA_INT, 0x0E, 0x0E); snd_soc_component_update_bits(component, WSA881X_BOOST_LOOP_STABILITY, 0x03, 0x03); snd_soc_component_update_bits(component, WSA881X_BOOST_MISC2_CTL, 0xFF, 0x14); snd_soc_component_update_bits(component, WSA881X_BOOST_START_CTL, 0x80, 0x80); snd_soc_component_update_bits(component, WSA881X_BOOST_START_CTL, 0x03, 0x00); snd_soc_component_update_bits(component, WSA881X_BOOST_SLOPE_COMP_ISENSE_FB, 0x0C, 0x04); snd_soc_component_update_bits(component, WSA881X_BOOST_SLOPE_COMP_ISENSE_FB, 0x03, 0x00); if (snd_soc_component_read32(component, WSA881X_OTP_REG_0)) snd_soc_component_update_bits(component, WSA881X_BOOST_PRESET_OUT1, 0xF0, 0x70); snd_soc_component_update_bits(component, WSA881X_BOOST_PRESET_OUT2, 0xF0, 0x30); snd_soc_component_update_bits(component, WSA881X_SPKR_DRV_EN, 0x08, 0x08); snd_soc_component_update_bits(component, WSA881X_BOOST_CURRENT_LIMIT, 0x0F, 0x08); snd_soc_component_update_bits(component, WSA881X_SPKR_OCP_CTL, 0x30, 0x30); snd_soc_component_update_bits(component, WSA881X_SPKR_OCP_CTL, 0x0C, 0x00); snd_soc_component_update_bits(component, WSA881X_OTP_REG_28, 0x3F, 0x3A); snd_soc_component_update_bits(component, WSA881X_BONGO_RESRV_REG1, 0xFF, 0xB2); snd_soc_component_update_bits(component, WSA881X_BONGO_RESRV_REG2, 0xFF, 0x05); } static int32_t wsa881x_resource_acquire(struct snd_soc_component *component, bool enable) { wsa881x_clk_ctrl(component, enable); wsa881x_bandgap_ctrl(component, enable); return 0; } static int32_t wsa881x_temp_reg_read(struct snd_soc_component *component, struct wsa_temp_register *wsa_temp_reg) { struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); struct swr_device *dev; u8 retry = WSA881X_NUM_RETRY; u8 devnum = 0; if (!wsa881x) { dev_err(component->dev, "%s: wsa881x is NULL\n", __func__); return -EINVAL; } dev = wsa881x->swr_slave; if (dev && (wsa881x->state == WSA881X_DEV_DOWN)) { while (swr_get_logical_dev_num(dev, dev->addr, &devnum) && retry--) { /* Retry after 1 msec delay */ usleep_range(1000, 1100); } if (retry == 0) { dev_err(component->dev, "%s get devnum %d for dev addr %lx failed\n", __func__, devnum, dev->addr); return -EINVAL; } } wsa881x_regcache_sync(wsa881x); mutex_lock(&wsa881x->temp_lock); wsa881x_resource_acquire(component, ENABLE); snd_soc_component_update_bits(component, WSA881X_TADC_VALUE_CTL, 0x01, 0x00); wsa_temp_reg->dmeas_msb = snd_soc_component_read32( component, WSA881X_TEMP_MSB); wsa_temp_reg->dmeas_lsb = snd_soc_component_read32( component, WSA881X_TEMP_LSB); snd_soc_component_update_bits(component, WSA881X_TADC_VALUE_CTL, 0x01, 0x01); wsa_temp_reg->d1_msb = snd_soc_component_read32( component, WSA881X_OTP_REG_1); wsa_temp_reg->d1_lsb = snd_soc_component_read32( component, WSA881X_OTP_REG_2); wsa_temp_reg->d2_msb = snd_soc_component_read32( component, WSA881X_OTP_REG_3); wsa_temp_reg->d2_lsb = snd_soc_component_read32( component, WSA881X_OTP_REG_4); wsa881x_resource_acquire(component, DISABLE); mutex_unlock(&wsa881x->temp_lock); return 0; } static int wsa881x_probe(struct snd_soc_component *component) { struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); struct swr_device *dev; if (!wsa881x) return -EINVAL; snd_soc_component_init_regmap(component, wsa881x->regmap); dev = wsa881x->swr_slave; wsa881x->component = component; mutex_init(&wsa881x->bg_lock); wsa881x_init(component); snprintf(wsa881x->tz_pdata.name, sizeof(wsa881x->tz_pdata.name), "%s.%x", "wsatz", (u8)dev->addr); wsa881x->bg_cnt = 0; wsa881x->clk_cnt = 0; wsa881x->tz_pdata.component = component; wsa881x->tz_pdata.wsa_temp_reg_read = wsa881x_temp_reg_read; wsa881x_init_thermal(&wsa881x->tz_pdata); snd_soc_add_component_controls(component, wsa_snd_controls, ARRAY_SIZE(wsa_snd_controls)); INIT_DELAYED_WORK(&wsa881x->ocp_ctl_work, wsa881x_ocp_ctl_work); return 0; } static void wsa881x_remove(struct snd_soc_component *component) { struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component); if (wsa881x->tz_pdata.tz_dev) wsa881x_deinit_thermal(wsa881x->tz_pdata.tz_dev); mutex_destroy(&wsa881x->bg_lock); return; } static const struct snd_soc_component_driver soc_codec_dev_wsa881x = { .name = DRV_NAME, .probe = wsa881x_probe, .remove = wsa881x_remove, .controls = wsa881x_snd_controls, .num_controls = ARRAY_SIZE(wsa881x_snd_controls), .dapm_widgets = wsa881x_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(wsa881x_dapm_widgets), .dapm_routes = wsa881x_audio_map, .num_dapm_routes = ARRAY_SIZE(wsa881x_audio_map), }; static int wsa881x_gpio_ctrl(struct wsa881x_priv *wsa881x, bool enable) { int ret = 0; if (wsa881x->pd_gpio < 0) { dev_err(wsa881x->dev, "%s: gpio is not valid %d\n", __func__, wsa881x->pd_gpio); return -EINVAL; } if (wsa881x->wsa_rst_np) { if (enable) ret = msm_cdc_pinctrl_select_active_state( wsa881x->wsa_rst_np); else ret = msm_cdc_pinctrl_select_sleep_state( wsa881x->wsa_rst_np); if (ret != 0) dev_err(wsa881x->dev, "%s: Failed to turn state %d; ret=%d\n", __func__, enable, ret); } else { if (gpio_is_valid(wsa881x->pd_gpio)) gpio_direction_output(wsa881x->pd_gpio, enable); } return ret; } static int wsa881x_gpio_init(struct swr_device *pdev) { int ret = 0; struct wsa881x_priv *wsa881x; wsa881x = swr_get_dev_data(pdev); if (!wsa881x) { dev_err(&pdev->dev, "%s: wsa881x is NULL\n", __func__); return -EINVAL; } dev_dbg(&pdev->dev, "%s: gpio %d request with name %s\n", __func__, wsa881x->pd_gpio, dev_name(&pdev->dev)); ret = gpio_request(wsa881x->pd_gpio, dev_name(&pdev->dev)); if (ret) { if (ret == -EBUSY) { /* GPIO was already requested */ dev_dbg(&pdev->dev, "%s: gpio %d is already set to high\n", __func__, wsa881x->pd_gpio); ret = 0; } else { dev_err(&pdev->dev, "%s: Failed to request gpio %d, err: %d\n", __func__, wsa881x->pd_gpio, ret); } } return ret; } static int wsa881x_event_notify(struct notifier_block *nb, unsigned long val, void *ptr) { u16 event = (val & 0xffff); struct wsa881x_priv *wsa881x = container_of(nb, struct wsa881x_priv, bolero_nblock); if (!wsa881x) return -EINVAL; switch (event) { case BOLERO_SLV_EVT_PA_OFF_PRE_SSR: snd_soc_component_update_bits(wsa881x->component, WSA881X_SPKR_DRV_GAIN, 0xF0, 0xC0); snd_soc_component_update_bits(wsa881x->component, WSA881X_SPKR_DRV_EN, 0x80, 0x00); break; case BOLERO_SLV_EVT_PA_ON_POST_FSCLK: case BOLERO_SLV_EVT_PA_ON_POST_FSCLK_ADIE_LB: if ((snd_soc_component_read32(wsa881x->component, WSA881X_SPKR_DAC_CTL) & 0x80) == 0x80) snd_soc_component_update_bits(wsa881x->component, WSA881X_SPKR_DRV_EN, 0x80, 0x80); break; default: break; } return 0; } static int wsa881x_swr_probe(struct swr_device *pdev) { int ret = 0; struct wsa881x_priv *wsa881x; u8 devnum = 0; bool pin_state_current = false; struct wsa_ctrl_platform_data *plat_data = NULL; wsa881x = devm_kzalloc(&pdev->dev, sizeof(struct wsa881x_priv), GFP_KERNEL); if (!wsa881x) return -ENOMEM; wsa881x->wsa_rst_np = of_parse_phandle(pdev->dev.of_node, "qcom,spkr-sd-n-node", 0); if (!wsa881x->wsa_rst_np) { dev_dbg(&pdev->dev, "%s: Not using pinctrl, fallback to gpio\n", __func__); wsa881x->pd_gpio = of_get_named_gpio(pdev->dev.of_node, "qcom,spkr-sd-n-gpio", 0); if (wsa881x->pd_gpio < 0) { dev_err(&pdev->dev, "%s: %s property is not found %d\n", __func__, "qcom,spkr-sd-n-gpio", wsa881x->pd_gpio); goto err; } dev_dbg(&pdev->dev, "%s: reset gpio %d\n", __func__, wsa881x->pd_gpio); } swr_set_dev_data(pdev, wsa881x); wsa881x->swr_slave = pdev; if (!wsa881x->wsa_rst_np) { ret = wsa881x_gpio_init(pdev); if (ret) goto err; } if (wsa881x->wsa_rst_np) pin_state_current = msm_cdc_pinctrl_get_state( wsa881x->wsa_rst_np); wsa881x_gpio_ctrl(wsa881x, true); wsa881x->state = WSA881X_DEV_UP; if (!debugfs_wsa881x_dent) { dbgwsa881x = wsa881x; debugfs_wsa881x_dent = debugfs_create_dir( "wsa881x_swr_slave", 0); if (!IS_ERR(debugfs_wsa881x_dent)) { debugfs_peek = debugfs_create_file("swrslave_peek", S_IFREG | 0444, debugfs_wsa881x_dent, (void *) "swrslave_peek", &codec_debug_ops); debugfs_poke = debugfs_create_file("swrslave_poke", S_IFREG | 0444, debugfs_wsa881x_dent, (void *) "swrslave_poke", &codec_debug_ops); debugfs_reg_dump = debugfs_create_file( "swrslave_reg_dump", S_IFREG | 0444, debugfs_wsa881x_dent, (void *) "swrslave_reg_dump", &codec_debug_ops); } } /* * Add 5msec delay to provide sufficient time for * soundwire auto enumeration of slave devices as * as per HW requirement. */ usleep_range(5000, 5010); ret = swr_get_logical_dev_num(pdev, pdev->addr, &devnum); if (ret) { dev_dbg(&pdev->dev, "%s get devnum %d for dev addr %lx failed\n", __func__, devnum, pdev->addr); goto dev_err; } pdev->dev_num = devnum; wsa881x->regmap = devm_regmap_init_swr(pdev, &wsa881x_regmap_config); if (IS_ERR(wsa881x->regmap)) { ret = PTR_ERR(wsa881x->regmap); dev_err(&pdev->dev, "%s: regmap_init failed %d\n", __func__, ret); goto dev_err; } ret = snd_soc_register_component(&pdev->dev, &soc_codec_dev_wsa881x, NULL, 0); if (ret) { dev_err(&pdev->dev, "%s: Codec registration failed\n", __func__); goto dev_err; } wsa881x->bolero_np = of_parse_phandle(pdev->dev.of_node, "qcom,bolero-handle", 0); if (wsa881x->bolero_np) { wsa881x->bolero_dev = of_find_device_by_node(wsa881x->bolero_np); if (wsa881x->bolero_dev) { plat_data = dev_get_platdata(&wsa881x->bolero_dev->dev); if (plat_data) { wsa881x->bolero_nblock.notifier_call = wsa881x_event_notify; if (plat_data->register_notifier) plat_data->register_notifier( plat_data->handle, &wsa881x->bolero_nblock, true); wsa881x->register_notifier = plat_data->register_notifier; wsa881x->handle = plat_data->handle; } else { dev_err(&pdev->dev, "%s: plat data not found\n", __func__); } } else { dev_err(&pdev->dev, "%s: bolero dev not found\n", __func__); } } else { dev_info(&pdev->dev, "%s: bolero node not found\n", __func__); } mutex_init(&wsa881x->res_lock); mutex_init(&wsa881x->temp_lock); return 0; dev_err: if (pin_state_current == false) wsa881x_gpio_ctrl(wsa881x, false); swr_remove_device(pdev); err: return ret; } static int wsa881x_swr_remove(struct swr_device *pdev) { struct wsa881x_priv *wsa881x; wsa881x = swr_get_dev_data(pdev); if (!wsa881x) { dev_err(&pdev->dev, "%s: wsa881x is NULL\n", __func__); return -EINVAL; } if (wsa881x->register_notifier) wsa881x->register_notifier(wsa881x->handle, &wsa881x->bolero_nblock, false); debugfs_remove_recursive(debugfs_wsa881x_dent); debugfs_wsa881x_dent = NULL; mutex_destroy(&wsa881x->res_lock); mutex_destroy(&wsa881x->temp_lock); snd_soc_unregister_component(&pdev->dev); if (wsa881x->pd_gpio) gpio_free(wsa881x->pd_gpio); swr_set_dev_data(pdev, NULL); return 0; } static int wsa881x_swr_up(struct swr_device *pdev) { int ret; struct wsa881x_priv *wsa881x; wsa881x = swr_get_dev_data(pdev); if (!wsa881x) { dev_err(&pdev->dev, "%s: wsa881x is NULL\n", __func__); return -EINVAL; } ret = wsa881x_gpio_ctrl(wsa881x, true); if (ret) dev_err(&pdev->dev, "%s: Failed to enable gpio\n", __func__); else wsa881x->state = WSA881X_DEV_UP; return ret; } static int wsa881x_swr_down(struct swr_device *pdev) { struct wsa881x_priv *wsa881x; int ret; wsa881x = swr_get_dev_data(pdev); if (!wsa881x) { dev_err(&pdev->dev, "%s: wsa881x is NULL\n", __func__); return -EINVAL; } ret = wsa881x_gpio_ctrl(wsa881x, false); if (ret) dev_err(&pdev->dev, "%s: Failed to disable gpio\n", __func__); else wsa881x->state = WSA881X_DEV_DOWN; return ret; } static int wsa881x_swr_reset(struct swr_device *pdev) { struct wsa881x_priv *wsa881x; u8 retry = WSA881X_NUM_RETRY; u8 devnum = 0; wsa881x = swr_get_dev_data(pdev); if (!wsa881x) { dev_err(&pdev->dev, "%s: wsa881x is NULL\n", __func__); return -EINVAL; } if (wsa881x->state == WSA881X_DEV_READY) { dev_dbg(&pdev->dev, "%s: device already active\n", __func__); return 0; } wsa881x->bg_cnt = 0; wsa881x->clk_cnt = 0; while (swr_get_logical_dev_num(pdev, pdev->addr, &devnum) && retry--) { /* Retry after 1 msec delay */ usleep_range(1000, 1100); } pdev->dev_num = devnum; wsa881x_regcache_sync(wsa881x); return 0; } #ifdef CONFIG_PM_SLEEP static int wsa881x_swr_suspend(struct device *dev) { dev_dbg(dev, "%s: system suspend\n", __func__); return 0; } static int wsa881x_swr_resume(struct device *dev) { struct wsa881x_priv *wsa881x = swr_get_dev_data(to_swr_device(dev)); if (!wsa881x) { dev_err(dev, "%s: wsa881x private data is NULL\n", __func__); return -EINVAL; } dev_dbg(dev, "%s: system resume\n", __func__); return 0; } #endif /* CONFIG_PM_SLEEP */ static const struct dev_pm_ops wsa881x_swr_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(wsa881x_swr_suspend, wsa881x_swr_resume) }; static const struct swr_device_id wsa881x_swr_id[] = { {"wsa881x", 0}, {} }; static const struct of_device_id wsa881x_swr_dt_match[] = { { .compatible = "qcom,wsa881x", }, {} }; static struct swr_driver wsa881x_codec_driver = { .driver = { .name = "wsa881x", .owner = THIS_MODULE, .pm = &wsa881x_swr_pm_ops, .of_match_table = wsa881x_swr_dt_match, }, .probe = wsa881x_swr_probe, .remove = wsa881x_swr_remove, .id_table = wsa881x_swr_id, .device_up = wsa881x_swr_up, .device_down = wsa881x_swr_down, .reset_device = wsa881x_swr_reset, }; static int __init wsa881x_codec_init(void) { return swr_driver_register(&wsa881x_codec_driver); } static void __exit wsa881x_codec_exit(void) { swr_driver_unregister(&wsa881x_codec_driver); } module_init(wsa881x_codec_init); module_exit(wsa881x_codec_exit); MODULE_DESCRIPTION("WSA881x Codec driver"); MODULE_LICENSE("GPL v2");